Finding the Fourth Proportional to 279,471.75, 385,671.93 and 152,148.26
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Solution
The fourth proportional to 279,471.75, 385,671.93 and 152,148.26 is: 209,965.09
Step by Step Solution
- Step 1: Write the proportion equation
279,471.75 : 385,671.93 = 152,148.26 : x - Step 2: Convert to fraction form
279,471.75/385,671.93 = 152,148.26/x - Step 3: Cross multiply
279,471.75x = 385,671.93 × 152,148.26 - Step 4: Simplify right side
279,471.75x = 58,679,311,151.98 - Step 5: Solve for x
x = 58,679,311,151.98/279,471.75 - Step 6: Final answer
x = 209,965.09
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.